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The sleeper model is basically a stock Norton Commando with the Dunstall Exhaust System being the only outward sign of it's considerable performance. Internally it is given the full Dunstall treatment and with 68 bhp on tap, it will out-drag anything your are likely to come up against.
Gear Ratio Options
Four speed semi-close ratio
Five Speed Close Ration optional extra
www.woodgate.org/dunstall/71nor4.html / Webmaster / Revised 24th February 2000